拖债
发表于 2025-3-30 09:13:34
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lattice
发表于 2025-3-30 12:53:47
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圆桶
发表于 2025-3-30 17:14:41
udy of total eclipses of the Sun.Draws on previously unpubli.In 2017, over 200 million Americans witnessed the spectacular total eclipse of the Sun, and the 2024 eclipse is expected to draw even larger crowds. In anticipation of this upcoming event, this book takes us back in history over 150 years,
温和女人
发表于 2025-3-31 00:37:58
https://doi.org/10.1007/978-3-540-71560-3t the USNO, standardizing procedures, and tracking down systematic errors in stellar position catalogues (though he exhibited little patience with this kind of observational work). He was now Professor Newcomb (for that is what Navy astronomers were called).
价值在贬值
发表于 2025-3-31 02:17:21
https://doi.org/10.1007/978-94-011-7849-5ntrast this word with watchers, a later subject, people who wished simply to experience the phenomenon. As far as I know, none of the individuals below were invited to join one of the large expeditions discussed so far.
巧思
发表于 2025-3-31 08:21:48
https://doi.org/10.1007/978-94-007-1570-7pread out those under his direction along the edge of totality, he could have mapped with great resolution the umbra’s width as a function of time. More precise information about where the Moon and Earth were in their orbits about the Earth and Sun, respectively, would have resulted.
过剩
发表于 2025-3-31 11:32:04
,Mécanismes Enzymatiques de Type Flip-Flop,or Mordecai Yarnell (1816–1879; USNO) had to stay behind to tend the clocks and coordinate the longitude-establishing telegraph signals! It is true: American astronomy had gone all out for the total eclipse of the Sun.
言行自由
发表于 2025-3-31 16:57:20
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冷峻
发表于 2025-3-31 19:56:08
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平息
发表于 2025-3-31 22:50:36
14: Standing on the Edge Looking Up,pread out those under his direction along the edge of totality, he could have mapped with great resolution the umbra’s width as a function of time. More precise information about where the Moon and Earth were in their orbits about the Earth and Sun, respectively, would have resulted.